SOLUTION: cos^4A-sin^4A=cos^2A-sin^2A
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Question 1083877
:
cos^4A-sin^4A=cos^2A-sin^2A
Found 2 solutions by
Alan3354, ikleyn
:
Answer by
Alan3354(69443)
(
Show Source
):
You can
put this solution on YOUR website!
That's a fact.
Answer by
ikleyn(52890)
(
Show Source
):
You can
put this solution on YOUR website!
.
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